GCA / SCIENCE PHOTO LIBRARY GCA / SCIENCE PHOTO LIBRARY
Bones of the ankle. Coloured X-ray image of a sagittal (side) view through a healthy human ankle. The ankle forms a hinge joint between the leg (at top) and foot (lower frame). Bones are yellow, outlined in blue. The tibia is the main leg bone seen; its concave head articulates with the cube-shaped talus, the uppermost bone in the foot (at lower centre). The talus is above the calcaneus bone which forms the heel projection behind the foot. The talus and calcaneus attach to tarsal bones in the middle of the foot, which in turn articulate with long metatarsal bones at the base of the toes.
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